used to emphasize that you are referring to one individual person, thing or type of thing and not others

We must pay particular attention to this point.

These documents are of particular interest.

I went into town for no particular reason.

The high inflation rates were of particular concern.

very definite about what you like and careful about what you choose

She's very particular about her clothes.

a fact or detail, especially one that is officially written down

written information and details about a property, business, job, etc.

Application forms and further particulars are available from the Personnel Office.

the particulars of a house in Bury

LEARNit Dictionary